What is the purpose of Content-Security-Policy (CSP)?

CSP prevents Cross-Site Scripting (XSS), clickjacking, and data injection attacks by restricting the domains and protocols from which scripts, styles, images, and frames can load.

What is HSTS (Strict-Transport-Security)?

HSTS instructs browsers to strictly communicate with your server over encrypted HTTPS connections, preventing SSL-stripping man-in-the-middle attacks.

CSP & HTTP Security Headers Generator

Build hardened HTTP security headers and Content Security Policies with real-time misconfiguration auditing.

script-src Directive

frame-ancestors (Anti-Clickjacking)

Strict-Transport-Security (HSTS)

Server Platform

🔒 Generated Security Configuration

🛡️ Compliance Standards: Hardened HTTP security headers satisfy PCI-DSS v4.0 Requirement 6.4.3, mitigate OWASP Top 10 injection and clickjacking attacks, and qualify your domain for an A+ Grade on Qualys SSL Labs.

HTTP Security Headers & Modern Defense-in-Depth

Properly configured HTTP security response headers provide vital defense-in-depth protection against clickjacking, MIME-type sniffing, cross-site scripting (XSS), and eavesdropping.

Critical HTTP Response Headers Checklist

Content-Security-Policy: Governs where resources (scripts, fonts, media) can be loaded from.
X-Content-Type-Options: Setting nosniff forces browsers to respect declared MIME types.
X-Frame-Options: Legacy directive preventing external domains from framing your site in an iframe.
Referrer-Policy: strict-origin-when-cross-origin protects privacy by redacting sensitive query strings across origins.